Question

How many moles of CO2 are there in 2.55 x 10

18

molecules of CO2?

Answer 1

Answer: There are
`4.23* 10^(-6)moles` of
`CO_2`

Step-by-step explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number
`6.023* 10^(23)` of particles.

To calculate the moles, we use the equation:

`\text{Number of moles}=\frac{\text{Given molecules}}{\text {Avogadros number}}`

`\text{Number of moles}=(2.55* 10^(18))/(6.023* 10^(23))=0.423* 10^(-5)moles`

Thus there are
`4.23* 10^(-6)moles` of
`CO_2`